[Repeater-Builder] Mistake in last FOR SALE AD (Incorrect Email)
Description: FOR SALE *** SEE END OF AD Photos May Be Seen : http://a1cmugs.com/v-web/gallery/albums.php 2 Ge Master II Continuous Duty Repeaters (COMPLETE SYSTEM) 1 Backup GE Portable Repeater Currently in operation in Lampasas TX 145.330- 162.2 / 444.875+ 88.5 / 144.390s ALL FOR $5000.00 *** SEE BELOW 3 REPEATERS FOR SALE APRS(CLICK PHOTO TO SEE MORE DETAILS)*** 3 REPEATERS FOR SALE APRS*** .NOTE: All Systems are Currently in Operation. System will need to be disassembled after sold. Shipping is not available (Local Pick-Up)...2 Repeater Cabinets (UHF Outside Cabinet) / (VHF Inside Cabinet)..Link COM RLC4 Repeater Controller (Controls UHF/VHF/Link/Echolink).Fully Configurable for linking repeaters, Voice Announcements, Voice Recorder and Tons for Extras see the following site: http://www.link-comm.com/rlc4.html ..CS-800 repeater controller (Backup Controller for VHF/UHF) with Added Extended Chip..2 each UHF Repeater Antennas (UHF DB420C 16 Bay and UHF DB420C 8 Bay) Tuned for Amateur 70cm Band. .VHF Repeater Ant (VHF Comet GP6). .4 Element Vertical 2mtr Beam for Link Radio. .60 Foot Galvanized fold over crank up tower. .2 each transmitters (75Watt 444.875 UHF) / (110 Watt 145.330 VHF). .2 each GE Power Supplies (UHF/VHF). .2 each Tone Boards (Switchable CTSS) (UHF/VHF)..2 each Duplexers (UHF/VHF). .2 each Repeater Receiver Preamps (HamTronics) (UHF/VHF). .1 each Ge Phoenix SX Backup/Portable VHF repeater 145.330- 162.2T (Programmable). .1 each Ge Phoenix SX VHF Link Radio (25 Watts)..Kenwood TR-7930 2 Meter Radio for APRS..2 each KPC3 v6.0 TNC (1 Working and 1 Working Backup) for APRS DIGI. .Laptop (Toshiba with CD and Floppy) Repeater Programming, EchoLink and APRS. .Docking Station for laptop w/ HDD, CD, Speakers. .Echolink VoiceOverIP Board WB2REM Board http://www.ilinkboards.com/echolink.html ..Extra GE Mobiles Phoenix (Mixed Vhf/UHF).Extra GE MVP (VHF). Extra GE Master PA's (VHF/UHF).GE Master II VHF VOTER RECEIVER Manuals and documents. CD .ALL FOR $5000.00 ***. For more information please call me: Tommie 254-458-8112. ALL FOR $5000.00*** Read Bottom of Text *** I am considering taking OFFERSfor individual items, If I can get enough offers then I will breakup the repeater. Please send your Offers for the item and price you want to pay. Price will not include shipping. ShippingCost willbe different for each item and shipping will be the responsibility of the buyer.Thehighest offer for a item will get the item. Once all of the items are sold then I will contacteach individual to send inthere payments. Send email as follows: Subject: ITEM WANTED Your Name, Your Email, Your Price Offer, Your Phone Number email me with your offers: [EMAIL PROTECTED] --- Tommie TaylorLampasas Skywarn Weather Repeater / EchoLink Coordinator for CTSSG---YAHOO: http://groups.yahoo.com/CenTexStormSpottersLIVE VIDEO CAM: http://ctsslampasas.org/myweather/mainpage.htmlWEBPAGE: http://ctsslampasas.org ---CTSSG Weekly Training Net on Thursday @ 7PMLampasas Repeater 145.330 - tone 162.2, Temple Repeater 146.720 - tone 88.5EchoLink KC5YVU-R Node #28821ICQ for Non_Hams 166128088 ---A1 Custom MugsWEBPAGE: http://a1cmugs.com Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Help with Duplexer ID
22 1/4 is the circumference? That would make them about 7 in diameter. Sounds like 800-900Mhz equipment. Wacom was making some custom cans for the 900Mhz paging industry back a few years ago. Joe Don [EMAIL PROTECTED] wrote: = The Size is 10 In High and 22 in around Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] GE MASTR II Repeater Need Service Manual
Anyone have forsale or to copy a service manual for a GE MASTR II Repeater? Thanks, Gary __ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: portable/mobile GMRS repeater antenna
--- In Repeater-Builder@yahoogroups.com, russ [EMAIL PROTECTED] wrote: I guess I should have said we use a Kenwood TKR-850 (non ver. 2) for the repeater running 25 watts and for a duplexer we use an old mobile duplexer model 631 made by Celwave. It does work very well. Set up time takes very little time. 73 Russ, Thanks for your input Russ. I guess I was hoping to be able to use a standard mobile mag mount due to the possibility of moving the vehicle around and not having to do the fold down, hide and shuffle routine. I'm sure that a regular repeater/base antenna would out perform any mobile antenna hands down...just trying to make some compromises and still get somewhat acceptable performance. Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Help with Duplexer ID
Diameter of the cavity doesn't necessarily determine frequency. the following link might help. http://www.emrcorp.com/images/tech_papers/tech_cover/antenna_duplexors(15-26).pdf Gary - K7NEY - Original Message - From: Joe [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Friday, March 11, 2005 5:40 AM Subject: Re: [Repeater-Builder] Help with Duplexer ID 22 1/4 is the circumference? That would make them about 7 in diameter. Sounds like 800-900Mhz equipment. Wacom was making some custom cans for the 900Mhz paging industry back a few years ago. Joe Don [EMAIL PROTECTED] wrote: = The Size is 10 In High and 22 in around Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: motorola trisolector
I was wondering if i could use it as a filter to increase the selectivity of my receiver similar to the resonators in my ge delta-s the front end in the delta is a lot more selective than the rangr is this is a really nice unit and if i can find a way to use it it would be great Paul (n9fco) - In Repeater-Builder@yahoogroups.com, Neil McKie [EMAIL PROTECTED] wrote: A Motorola TLDxxx model number says it is a 150 MHz range unit. If your plan is to use it on the 2 meter ham band, I don't believe it will tune sharply enough to do you any good. It was originally designed use was probably either 5.26 or 6.28 MHz spread between transmit and receive. That just won't work on the 2 meter amateur band. Neil - WA6KLA Paul wrote: hello everyone , I have a motorola trisolector part number tld-8994b. a friend once told me that this could be used as a duplexer ,in fact it is a duplexer from a mobile radio telephone does any one have information about it ? i was told it is a vhf unit and it is rated for 40-45 watts that is about all i know it also has a number on it 15e83122f-05 this is stamped in the casing . any info you fellas could give would be appreciated Paul (n9fco) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: portable/mobile GMRS repeater antenna
Hi Bob and the Group, I have seen Russ's set up on his SUV and the DB-404 is not a large antenna at all. His mount folds backwards. It is made for the Tar heel low band mobile antenna. I would not use a mag mount for any thing. What would you gain by having a repeater using a mobile antenna that you could not do the same thing as just working simplex? I do not understand? Dean Westbrook, EE,PE. Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Repeater-Builder] Re: Micor in cabinet mobile conversion desense.
The basic version of the high power (non duplex) micor mobile has the minimal shielding kit, none of the bypass caps of the duplex version. From memory, the in cab desense version I found was in a UHF conversion. Above about 35 watts output, we started to see the in chassis RF make its way into unwanted places. We simply ran the internal rf amplifier at 25 watts with the high power final bypassed (actually replaced with a lower powered micor final) and drove an external amp. Might have been specific to that (one) micor model/version, but it was there as also seen in some high power Mitrek conversions. There was also an issue of the high power mobile heat sink not being enough for repeater operation at full tilt. Sometimes the free lunch comes with ham... cheers, skipp (Getting geared up for IWCE and Dayton) Kevin Custer [EMAIL PROTECTED] wrote: skipp025 wrote: Sometimes there is no free Commercial radio lunch... a standard converted Micor Mobile will start in chassis desense at power levels above 30-40 watts. I have converted about 100 Motorola Micor Mobiles to repeaters. They have included types from Low Band, High Band, and UHF, and RailRoad versions. I have *never* seen an in cabinet desense issue, even with a 6 meter unit at 500 Kc separation, or a 2M unit with 600 Kc separation, either one running 110 watts, or more. Some Micor Low Band mobiles will easily do 150 watts. While I won't run a mobile at those levels continuously, I have thoroughly tested them and have never seen one ounce of desense. In the units you have experienced these problems, have they been properly converted? Double shielded RX cabling? What band? Have the Audio Squelch Boards had the duplex RF bypassing done? Where do you believe the desense to have been ingressing, at an RF level, or audio? Realize that the Micor Mobile AF amplifier will exhibit desense issues. I have traced these issues back to the large filter capacitor on the interconnect board; which has dried out. Also, even when the AF amp is experiencing difficulty, the audio from the Emitter Follower is clean, and since this is where I choose to get the audio that is to be repeated, no ill effects are ever seen in real practice. So, are you sure the desense you heard was being retransmitted, or was it simply disturbing the local speaker? Brian Martens of ICS Controllers will be releasing a custom controller for the Motorola Micor Mobile repeater conversion (if he hasn't already). At my recommendation, he has included an on-board AF amp that allows the OEM Micor AF PA to be removed, resulting in less current draw, and it gets around the Micor's audio amplifier's shortcomings when a mobile radio is used as a repeater. I'm sure the converted high powered mitreks also suffer from the same problem. I have experienced desense in *some* of the 2M conversions I have done on the Mitrek. Kevin Custer Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] GE MASTR II Repeater Need Service Manual
At 06:02 AM 3/11/05, you wrote: Anyone have forsale or to copy a service manual for a GE MASTR II Repeater? Thanks, Gary Contact Ted Jansen at 860-653-3596 - he has a lot of original manuals for sale. Also look on the GE page for the LBI index. There are a large number of M2 manuals for download. Mike WA6ILQ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Schematic or Manual for Biddle 433F
Am looking for a schematic or manual for a Biddle 433F TDR Cable Test Set. Trying to return a favor to a friend who has helped me greatly in the past. Willing to pay for, copy, etc. Thank you, Gary K2UQ Trenton, NJ [EMAIL PROTECTED] Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Repeater-Builder] Re: Hamtronics, Inc.
Jim B. [EMAIL PROTECTED] wrote: Thing is, for the same amount of money, you can either put together a Motorola or GE station conversion, or just go out and buy a Kenwood TKR-850. This is probably true. But Hamtronics and others were selling turnkey repeater packages long before the surplus commerical radio conversion market heated up and before the major LMR Companies started being a lot more friendly to the Amateur Crowd. Now everyone is beating up on everyone else for a piece of the repeater pie. Global economics up against the guy in his garage or small radio shop back room converting surplus two way radios. In either case, you will have a more reliable package, and a MUCH cleaner transmitter, especially cleaner, properly limited audio that won't splatter on to adjacent channels. This has been a problem with all made-for-amateur repeaters except for the Icom's. They just can't seem to make clean transmitters. I have have not found most made for Amateur (factory built) Radio Repeaters to be splatter generators and most have pretty good audio. All depends on the model and generation of production. Original VHF Engineering 2 meter TX strips I have here still have great audio and still make Part 90 commerical spectral requirements. Their receiver designs are no longer usable for most repeater applicataions, but their transmitters work just fine. One tx strip in a good bud box has been chugging along since the late 70's. If you are getting in-cabinet desense from a Micor mobile at any power level, there is something VERY wrong. I've seen them function just fine at full output, 100W+. (Not left at that power of course, but desense isn't an issue.) Might have been specific to the bare bones standard UHF Micor Mobile we used at the time. The versions we had with the standard duplex shield kit had minimal stray RF problems. We didn't run the mobiles above 25 watts anyway, the heat sink wasn't rated for lock to talk operation. The mentioned micor mobile was a Gov Surplus unit. For some reason, Motorhead would sell bare bones radios for low bid prices by removing normal unit installed parts. We used to joke about the engineers removing parts until the radio stopped working, then replace the last part pulled and ship the radio out. The Mitrek version of this bare bones radio was sold as a Motrek... same pc board, less parts. Great taste, less filling. There's no reason you can't run a Hamtronics repeater at a commercial site when all the homework is done properly. Their turnkey boxes are even FCC Type-Accepted. Not for part 90. Check your mic cord... I do believe they offer a Part 90 box. If I ever see one of those at a site, I will find out whose it is and raise hell. Especially if me or my customer is having interference problems. Jim Barbour WD8CHL Your above statement reads like you follow The American Tower - way of doing business. Might be prudent to actually source a problem before one points a finger. cheers, skipp Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Importance of quality coax in duplex service (was Re: [Repeater-Builder] Re: portable/mobile GMRS repeater antenna)
At 3/11/2005 07:45 AM, you wrote: I would not use a mag mount for any thing. What would you gain by having a repeater using a mobile antenna that you could not do the same thing as just working simplex? Actually, the best reason for not using a mag mount as a repeater antenna is the feedline attached to it. I have yet to find a mag mount that uses RG-223 or some other coax with silver-plated braid. Now if one were to replace the feed with the proper coax, it might work. This leads me to my recent experiences with copper or tin-plate-braided coax in duplex service. I've serviced 2 repeaters in the past two months. One did not have a desense problem at the time but had one of those crossband diplexers with pigtail leads on the output of the (in-band) duplexer. After reading all the recent postings on the subject of those leads being a problem, I tested for desense by moving the pigtails around while putting a weak signal into the system. Sure enough the scratchies started right in. I removed the diplexer replaced it with an identical model that has no pigtails, then reran the test while moving all the other cables (all RG-214). No desense! It's interesting to note that the bad diplexer spent its entire life indoors, so it's not clear if any oxidation is required for the coax to lose its linearity, or if sufficient oxidation for failure occurs regardless of the environment. The other repeater had a desense problem was was thought to be caused by the rusty pole tower that its GP9 antenna was mounted to. A thorough shake pounding of the pole revealed no effect on the desense (no static, steady desense level). Checked the jumper between the hardline GP9; no problem there. Recalling my above experience with the crossband duplexer pigtails, I headed back inside the building to look at the cabinet cabling. Sure enough, there was about 8 ft. of RG-213 connecting the duplexer to the hardline. Picked it up the desense level went up by 20 dB. Replaced that with a shorter length of RG-214. Again, problem cured! What I've learned from all this is that any transmission line that carries transmit receive signals simultaneously (duplex service) must use either solid metal (Heliax) or silver-plated braid as the shielding material. The interconnecting jumpers between the duplexer, RX TX are far less critical, since any low-level noise generated in the TX jumper will be filtered out by the duplexer there is no substantial TX signal (-40 dBm or lower) in the RX jumper. Bob NO6B Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Wanted manual for a UHF Micor mobile
Wanted - UHF Micor mobile manual for T44RTA3900. I am looking for an original manual that will be given to a newbie along with the radio itself. Please respond directly if you've got an original manual that you'd be willing to sell to me. Thanks de John wb six gha at arrl dot net .. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: portable/mobile GMRS repeater antenna
--- In Repeater-Builder@yahoogroups.com, russ [EMAIL PROTECTED] wrote: The little DB-404 works very well we use it for bike-a-thons and walks and so on. We park my SUV in a good spot at the event. And leave it all day during the event. We also have a repeater we install on a high reach for events we need more range. It uses a DB-408 on that unit. 73, Russ Ham, W3CH. GMRS, WPYK-254. Ok...I have a Dodge Caravan (no snickers please) that I'll be using for an emergency vehicle. Russ, on your setup, using the DB-404, what flavor of feedline do you use? Also, what kind of height do you achieve with your setup. I can envision on my vehicle some sort of mounting clamp I guess attached to the rear bumper (which is plastic) and then running the feedline into the vehicle through one of the rear window openings. When in transit, I guess I could strap 3 or 4 5' TV antenna masts and the antenna to the luggage rack, but I'm curious about the feedline...hardline would be great of course, but with repeated coiling and the possibility of kinking I wonder if something like Andrew CNT-400 would be better. Also, would standard TV masts be useable (safely) for a DB-404? Also, my vehicle has a total (right now) of 5 radios installed...1 lowerpower UHF Spectra for GMRS and public service frequencies, 1 Icom 2 meter mobile for ham stuff, 1 VHF maratrac for part 90, mutual aid stuff and some ham stuff, 1 Radio Shaft VHF 19-2100 (or whatever the model is...the old mobile 2 channel business dot radio) I use it for MURS, and an 800 MHz STX smartnet handheld with a convertacom. So obviously, I'm a rolling RF cannon...course, rarely though does more than 1 radio get keyed at a time. Battery/power issues are another topic. thoughts? (please don't suggest a motor home or something like that unless you want to do the paypal thingie to mehehehe) Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: Importance of quality coax in duplex service (was Re: [Repeater-Builder] Re: portable/mobile GMRS repeater antenna)
Bob; Carrying this thought a little farther leads me to wonder why the harness of the DB 224 antenna made of VB83 and VB11 for example would not be a problem also. Do you suppose it is the vapor block impregnation that prevents microscopic movement? Gran K6RIF At 13:22 3/11/2005, you wrote: At 3/11/2005 07:45 AM, you wrote: I would not use a mag mount for any thing. What would you gain by having a repeater using a mobile antenna that you could not do the same thing as just working simplex? Actually, the best reason for not using a mag mount as a repeater antenna is the feedline attached to it. I have yet to find a mag mount that uses RG-223 or some other coax with silver-plated braid. Now if one were to replace the feed with the proper coax, it might work. This leads me to my recent experiences with copper or tin-plate-braided coax in duplex service. I've serviced 2 repeaters in the past two months. One did not have a desense problem at the time but had one of those crossband diplexers with pigtail leads on the output of the (in-band) duplexer. After reading all the recent postings on the subject of those leads being a problem, I tested for desense by moving the pigtails around while putting a weak signal into the system. Sure enough the scratchies started right in. I removed the diplexer replaced it with an identical model that has no pigtails, then reran the test while moving all the other cables (all RG-214). No desense! It's interesting to note that the bad diplexer spent its entire life indoors, so it's not clear if any oxidation is required for the coax to lose its linearity, or if sufficient oxidation for failure occurs regardless of the environment. The other repeater had a desense problem was was thought to be caused by the rusty pole tower that its GP9 antenna was mounted to. A thorough shake pounding of the pole revealed no effect on the desense (no static, steady desense level). Checked the jumper between the hardline GP9; no problem there. Recalling my above experience with the crossband duplexer pigtails, I headed back inside the building to look at the cabinet cabling. Sure enough, there was about 8 ft. of RG-213 connecting the duplexer to the hardline. Picked it up the desense level went up by 20 dB. Replaced that with a shorter length of RG-214. Again, problem cured! What I've learned from all this is that any transmission line that carries transmit receive signals simultaneously (duplex service) must use either solid metal (Heliax) or silver-plated braid as the shielding material. The interconnecting jumpers between the duplexer, RX TX are far less critical, since any low-level noise generated in the TX jumper will be filtered out by the duplexer there is no substantial TX signal (-40 dBm or lower) in the RX jumper. Bob NO6B Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.7.1 - Release Date: 3/9/2005 Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.7.1 - Release Date: 3/9/2005
[Repeater-Builder] Re: portable/mobile GMRS repeater antenna
--- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote: Hi Bob and the Group, I have seen Russ's set up on his SUV and the DB-404 is not a large antenna at all. His mount folds backwards. It is made for the Tar heel low band mobile antenna. I would not use a mag mount for any thing. What would you gain by having a repeater using a mobile antenna that you could not do the same thing as just working simplex? I do not understand? Dean Westbrook, EE,PE. Dean, my point is that during an event, the vehicle (which would be parked at a location that was suitable at the time) might have to be moved to another location due to un-forseen situations. The van would be acting as a temporary repeater until our main units come back on line. Anything could happen...what was a fine location at 2:00 PM might start to get under water at 3:00 PM so the temporary repeater might have to go elsewhere. The whole point is to allow for handheld coverage (limited as it may be) via the repeater until the time that our normal repeaters come back up so simplex doesn't come into this situation (unless it works anyway). The van would be unoccupied throughout the event unless it needed to be moved. Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: portable/mobile GMRS repeater antenna
Something you might look at would be one of the lightweight fiberglass base station antennas made by Antennex, Maxrad, etc. These only weigh about 4 or 5 pounds, you could also get several 6ft sections of telescopic aluminum tubing to support it, much less weight and size than the TV masting. For a short run of cable like that, you could probably use good quality RG-8X type cable for less weight and good storability. Joe --- rtoplus [EMAIL PROTECTED] wrote: --- In Repeater-Builder@yahoogroups.com, russ [EMAIL PROTECTED] wrote: The little DB-404 works very well we use it for bike-a-thons and walks and so on. We park my SUV in a good spot at the event. And leave it all day during the event. We also have a repeater we install on a high reach for events we need more range. It uses a DB-408 on that unit. 73, Russ Ham, W3CH. GMRS, WPYK-254. Ok...I have a Dodge Caravan (no snickers please) that I'll be using for an emergency vehicle. Russ, on your setup, using the DB-404, what flavor of feedline do you use? Also, what kind of height do you achieve with your setup. I can envision on my vehicle some sort of mounting clamp I guess attached to the rear bumper (which is plastic) and then running the feedline into the vehicle through one of the rear window openings. When in transit, I guess I could strap 3 or 4 5' TV antenna masts and the antenna to the luggage rack, but I'm curious about the feedline...hardline would be great of course, but with repeated coiling and the possibility of kinking I wonder if something like Andrew CNT-400 would be better. Also, would standard TV masts be useable (safely) for a DB-404? Also, my vehicle has a total (right now) of 5 radios installed...1 lowerpower UHF Spectra for GMRS and public service frequencies, 1 Icom 2 meter mobile for ham stuff, 1 VHF maratrac for part 90, mutual aid stuff and some ham stuff, 1 Radio Shaft VHF 19-2100 (or whatever the model is...the old mobile 2 channel business dot radio) I use it for MURS, and an 800 MHz STX smartnet handheld with a convertacom. So obviously, I'm a rolling RF cannon...course, rarely though does more than 1 radio get keyed at a time. Battery/power issues are another topic. thoughts? (please don't suggest a motor home or something like that unless you want to do the paypal thingie to mehehehe) Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 __ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] repeater coax duplexer leads
Anyone have any idea what length of coax I should run from the transmitter and receiver to the duplexer? I have a Sinclair Q2220E and freq of 147.225 Transmit. Any info about this will be greatly appreciated. Thanks in advance. WA0VUSLarry KemperMuscatine, Iowa [EMAIL PROTECTED] Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. attachment: tech.gif
[Repeater-Builder] Re: portable/mobile GMRS repeater antenna
--- In Repeater-Builder@yahoogroups.com, Joe Montierth [EMAIL PROTECTED] wrote: Something you might look at would be one of the lightweight fiberglass base station antennas made by Antennex, Maxrad, etc. These only weigh about 4 or 5 pounds, you could also get several 6ft sections of telescopic aluminum tubing to support it, much less weight and size than the TV masting. For a short run of cable like that, you could probably use good quality RG-8X type cable for less weight and good storability. Joe Thanks Joe...Your comments and suggestions are kinda getting to the crux of the info and recommendations I'm looking for. I think you grasp the idea. Portability, storability, ease of deployment and dis-mantling/moved/re-deployed, simplicity of setup (could be very dark/rainy/snowy/windy/etc. with the best possible coverage is the idea. I currently have one of the comtelco fiberglas base antennasdon't remember the model or specs but it's about 4' tall and couldn't weigh more than about 3 or 4 pounds tops. I'm not familiar with the aluminum telescopic stuff you're referring toany idea where this could be gotten and could it be stowed on my luggage rack ok? Course, cost is a factor. I'm just trying to do as much as I can for emergency services/Red Cross/ARES/CERT/you name it in my area. Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Re: portable/mobile GMRS repeater antenna
Bob, For a portable mast I would suggest going to your local RV center and asking about one of their portable flag poles. It has a small base approx. 12 x 14 inches (place it on the ground and drive your tire onto it), and a telescoping mast that locks into place with push-pins. We used one at the pentagon for the 911 mess, and it worked out quite well. Not terribly expensive, about 20 ft tall extended, about 6 foot collapsed. Fairly rugged, and the base plate detaches for storage. 73's Mike Perryman www.k5jmp.us -Original Message- From: rtoplus [mailto:[EMAIL PROTECTED] Sent: Friday, March 11, 2005 6:25 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: portable/mobile GMRS repeater antenna --- In Repeater-Builder@yahoogroups.com, Joe Montierth [EMAIL PROTECTED] wrote: Something you might look at would be one of the lightweight fiberglass base station antennas made by Antennex, Maxrad, etc. These only weigh about 4 or 5 pounds, you could also get several 6ft sections of telescopic aluminum tubing to support it, much less weight and size than the TV masting. For a short run of cable like that, you could probably use good quality RG-8X type cable for less weight and good storability. Joe Thanks Joe...Your comments and suggestions are kinda getting to the crux of the info and recommendations I'm looking for. I think you grasp the idea. Portability, storability, ease of deployment and dis-mantling/moved/re-deployed, simplicity of setup (could be very dark/rainy/snowy/windy/etc. with the best possible coverage is the idea. I currently have one of the comtelco fiberglas base antennasdon't remember the model or specs but it's about 4' tall and couldn't weigh more than about 3 or 4 pounds tops. I'm not familiar with the aluminum telescopic stuff you're referring toany idea where this could be gotten and could it be stowed on my luggage rack ok? Course, cost is a factor. I'm just trying to do as much as I can for emergency services/Red Cross/ARES/CERT/you name it in my area. Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: portable/mobile GMRS repeater antenna
--- In Repeater-Builder@yahoogroups.com, Mike Perryman [EMAIL PROTECTED] wrote: Bob, For a portable mast I would suggest going to your local RV center and asking about one of their portable flag poles. It has a small base approx. 12 x 14 inches (place it on the ground and drive your tire onto it), and a telescoping mast that locks into place with push-pins. We used one at the pentagon for the 911 mess, and it worked out quite well. Not terribly expensive, about 20 ft tall extended, about 6 foot collapsed. Fairly rugged, and the base plate detaches for storage. 73's Mike Perryman www.k5jmp.us Great idea Mike!!! I'll definately check it out!! Thanks! Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892 Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] TPL Amplifier Manual Scans Available
It's Friday..! Thank goodness... been a long drag from the couch to the refrigerator :-) Anyway, through the magic of an auto doc scanner and two cups of House Blend Java, I've managed to convert three TPL amplifier manuals to pdf format scans and place them on the www.radiowrench.com/sonic web page. These are the semi hard to find manuals for low band vhf, high band vhf and uhf. If you are a serious solid state amp builder - tech, copies of these manuals should be in your files. The two VHF Amp Manuals are for Mobile Amplifier Models, the UHF amp is the repeater - base station unit. The file size of the last mentioned is pretty big, so please use a high speed connection and make copies of your downloaded file vs making multiple downloads. The UHF manual has a nice pin diode switching circuit if you'd like to see one that really works well. You've got to use your brain... the two VHF manuals are small booklet types original print vertical half page and double sided. When you go to print the pdf file for the two vhf manuals print the odd pages only followed by reinserting the paper and printing the even pages. The end result should be printed double side pages that fold back into the original half page vertical book format. Please don't be a greedy piggy... down load the amplifier (and any other desired) files single file so you don't hose up the server band-width. 50 plus requests for downloads at one time can really slow things down and wake up the web server dream police. This information will remain on the server, so relax and download it when you can, single file please. thanks much Enjoy skipp Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Decibel DB 404, 408 411 Antenna Drawings available
Since all of you are not yet sick of seeing my posts, I'll mention the Decibel Antenna Drawings have been scanned and uploaded to the: www.radiowrench.com/sonic web page. Mike also has some of them posted on the Repeater Builder web site. I've also added the antenna quiz db-411-b model and the 408 mounting information to the available mix. Enjoy skipp Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Hamtronics, Inc.
Hello skipp025 wrote: ... snip ... The Mitrek version of this bare bones radio was sold as a Motrek... same pc board, less parts. Great taste, less filling. Then there is the GE MVP radios ... Missing Valuable Parts ... Neil - WA6KLA Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Decibel DB 404, 408 411 Antenna Drawings available
At 04:18 PM 3/11/05, you wrote: Since all of you are not yet sick of seeing my posts, I'll mention the Decibel Antenna Drawings have been scanned and uploaded to the: www.radiowrench.com/sonic web page. Mike also has some of them posted on the Repeater Builder web site. I've also added the antenna quiz db-411-b model and the 408 mounting information to the available mix. Enjoy skipp Actually they are all up on the Antennas page. Mike Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] repeater coax duplexer leads
At 03:19 PM 3/11/05, you wrote: Anyone have any idea what length of coax I should run from the transmitter and receiver to the duplexer? I have a Sinclair Q2220E and freq of 147.225 Transmit. Any info about this will be greatly appreciated. Thanks in advance. WA0VUS Larry Kemper Muscatine, Iowa [EMAIL PROTECTED] If the entire system is 50 ohms, then the length is immaterial. Use quality coax (see Bob Dengler's message a few higher in the list) with silver plated connectors (no nickel) and start hooking things up. Folks use magic lengths to compensate for non-50-ohm environments, especially solid-state TXs, and to get the SWR under control. there was a thread on Z-matchers a while back I'd really like someone to consolidate all of that into an article for the archives at www.repeater-builder.com ... Mike WA6ILQ Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Wanted manual for a UHF Micor mobile
Manual Part Number 68P81015E70 Neil - WA6KLA John Burch wrote: Wanted - UHF Micor mobile manual for T44RTA3900. I am looking for an original manual that will be given to a newbie along with the radio itself. Please respond directly if you've got an original manual that you'd be willing to sell to me. Thanks de John wb six gha at arrl dot net .. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] a couple more things...
Hi, Here are a few more things I forgot in my last message... These prices do not include shipping. I will ship via Fedex Ground from my neighborhood Fedex/Kinkos; their prices are better than UPS ground. Other shipping arrangements are possible; it's your money after all. The prices may be negotiable, best reasonable offer, etc. This stuff is all as is condition, no guarantee, except it will be what I say it is. I believe everything works, except as noted. Motorola UHF Mitrek manual in very good condition, $20. Motorola MSY UHF Community Repeater, works, includes manuals, no duplexer, $200, PICK UP ONLY in Marietta, GA. Too big/heavy to ship. This stuff has to go. Please reply by private mail, not to the list. Thanks, Jeff Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Decibel DB 404, 408 411 AntennaDrawings available
Of which catalog? Neil Mike Morris WA6ILQ wrote: At 04:18 PM 3/11/05, you wrote: Since all of you are not yet sick of seeing my posts, I'll mention the Decibel Antenna Drawings have been scanned and uploaded to the: www.radiowrench.com/sonic web page. Mike also has some of them posted on the Repeater Builder web site. I've also added the antenna quiz db-411-b model and the 408 mounting information to the available mix. Enjoy skipp Actually they are all up on the Antennas page. Mike Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Spectra TAC Modules
Hello, Have about 12 Spectra TAC "SQM" modules (TRN6091B version). One Command Module (TRN6093A) For Sale. Contact me of list if interested Gerry N9MEP Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] repeater coax duplexer leads
Larry, It depends. If your transmitter PA is exactly 50 ohms source impedance (not likely) and your duplexer input cavity is exactly 50 ohms load impedance (not likely) and your interconnecting coax is exactly 50 ohms (pretty likely if it's good quality), then the length of the coax is irrelevant. Ah, but we know that nothing in this world is exact, especially PA source impedance! Perhaps the best course of action is to make up the interconnecting cable to neatly and conveniently fit the installation, and see how it works. If the power to the antenna, measured with a thruline wattmeter at the antenna connector of the duplexer, is more or less what you'd expect after the loss in the duplexer and cables, then you probably don't need to do anything. If you determine that the power to the antenna is significantly less than you think it should be, then you might try installing an impedance matcher (Z-Matcher) right at the transmitter output connector, and see if you can tune the PA for the expected output. If that makes a huge difference, you can either leave the Z-Matcher in line and get on with your life, or you can experiment with varying lengths of cable to find the length which transforms the impedance to a value similar to that created with the Z-Matcher. 73, Eric Lemmon WB6FLY Larry Kemper wrote: Anyone have any idea what length of coax I should run from the transmitter and receiver to the duplexer? I have a Sinclair Q2220E and freq of 147.225 Transmit.Any info about this will be greatly appreciated.Thanks in advance. WA0VUS Larry Kemper Muscatine, Iowa [EMAIL PROTECTED] --- Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] TK805
Im in need of the load capacitance and calibration accuracy, for the crystal in position X1 which is on a freq of 33.845Mhz in a TK-805 uhf mobile Thanks Brent -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.6.3 - Release Date: 3/7/2005 --- [This E-mail scanned for viruses at TNWEB LLC] Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Motorola Saber 1 Parts .
Hello All , I'm looking for Motorola Saber 1 UHF Parts . If anyone knows where i can get used parts for Saber 1 , them pleas e-mail me . Thanks Steve KB3FSR . Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] repeater coax duplexer leads
I would check reflected power at the PA output it should be no more than if you were fireing the pa straight into the antenna. If it is then you will need to adjust your cable length by trying different lenghs increasing an inch or two at a time (on Vhf) until you reach the equivilent of 1/4 wavelength of added cable. Somewhere during the process you should see minimum reflected power / maximum foreward out. This does work I tried it with my 2 meter repeater when I changed recievers the new reciever was experiencing bad desense and by adding small jumpers between amp and duplexer reflected power went away and so did desense. I think this whole process as I have described it exists on the repeater-builder web site in the Wacom manual. http://www.repeater-builder.com/wacom/wp6xxVHFtuninginstructions.pdf hope this helps. tom n8ies [Original Message] From: Eric Lemmon [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Date: 3/11/2005 10:50:01 PM Subject: Re: [Repeater-Builder] repeater coax duplexer leads Larry, It depends. If your transmitter PA is exactly 50 ohms source impedance (not likely) and your duplexer input cavity is exactly 50 ohms load impedance (not likely) and your interconnecting coax is exactly 50 ohms (pretty likely if it's good quality), then the length of the coax is irrelevant. Ah, but we know that nothing in this world is exact, especially PA source impedance! Perhaps the best course of action is to make up the interconnecting cable to neatly and conveniently fit the installation, and see how it works. If the power to the antenna, measured with a thruline wattmeter at the antenna connector of the duplexer, is more or less what you'd expect after the loss in the duplexer and cables, then you probably don't need to do anything. If you determine that the power to the antenna is significantly less than you think it should be, then you might try installing an impedance matcher (Z-Matcher) right at the transmitter output connector, and see if you can tune the PA for the expected output. If that makes a huge difference, you can either leave the Z-Matcher in line and get on with your life, or you can experiment with varying lengths of cable to find the length which transforms the impedance to a value similar to that created with the Z-Matcher. 73, Eric Lemmon WB6FLY Larry Kemper wrote: Anyone have any idea what length of coax I should run from the transmitter and receiver to the duplexer? I have a Sinclair Q2220E and freq of 147.225 Transmit.Any info about this will be greatly appreciated.Thanks in advance. WA0VUS Larry Kemper Muscatine, Iowa [EMAIL PROTECTED] --- Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] vertex ftl-1011
I have a vertex ftl-1011 lowband radio that i tuned up to TX/RX on 52 MHZ. Does anyone have advice on how to adjust the front end for optimum RX? Thanks, Rob Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
